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Home/ Questions/Q 944825
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Editorial Team
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Editorial Team
Asked: May 15, 20262026-05-15T22:39:27+00:00 2026-05-15T22:39:27+00:00

A website has a database of n questions. You click a button and are

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  • A website has a database of n questions.
  • You click a button and are shown one random question per click. The probability of a particular question showing up at the click event is 1/n.

On average, how many clicks would be required to see all the questions in the database?

What is the approach required for such questions?

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  1. Editorial Team
    Editorial Team
    2026-05-15T22:39:28+00:00Added an answer on May 15, 2026 at 10:39 pm

    See coupon collector’s problem.

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